XIEGU G90 SDR Portable HF Transceiver Operation Manual

Important Reminder

Before operating the equipment, please study this instruction manual carefully and retain it for future reference.

Safety Considerations

• Do not use equipment during an electrical storm. ⚡ [electrical hazard]
• Do not expose the unit to moisture. ☔ [moisture warning]
• Use this device responsibly and observe all local laws and regulations. ✋ [responsible use]
• Caution! High RF voltage at antenna connector! ⚡ [high voltage warning]

Features

• SDR portable HF Transceiver
• Built-in auto antenna tuner
• Spectrum image and Waterfall image display
• The display unit and the case can be separated.
• High-performance front-end ESC preselector.

Packing List

Parameters

1.1 Basic Parameter

Receive frequency range:

0.5MHz~29.999999MHz

Transmit frequency range:

• 1.8~2.0MHz
• 3.5~4.0MHz
• 7.0~7.3MHz
• 10.1~10.15MHz
• 14.0~14.35MHz
• 18.068~18.168MHz
• 21.0~21.45MHz
• 24.89~24.99MHz
• 28.0~29.7MHz

Operating mode:

SSB/CW/AM

Receive sensitivity:

0.25uV @12dB Sinad (PRE:ON)

Adjacent channel suppression:

60dB

Select:

SSB 2.4kHz, CW 300Hz

Dynamic Range:

90dB

Frequency stability:

±2ppm (after power on 30 min)

Operating voltage range:

11~16V DC

Standby current:

750mA @ Max

Transmitting voltage:

8A @ Max

RF output:

20W

Carrier suppression:

≥40dB

Spurious suppression:

≥50dB

Sideband suppression:

≥55dB

Audio output power:

0.5W@ 4Ω

Temperature range:

0℃~55℃

Case size:

120*45*210 mm (non include protrusions; display system and body combination status)

Case quality:

about 1.85kg

1.2 ATU Parameter

Initial tuning time:

≤10s

Reentry tuning time:

≤50ms

Tuned impedance range:

15Ω~250Ω

Device Description

2.1 Front Panel

The front panel features controls for operation and configuration.

• 1. Volume/headphone knob: Controls audio volume and headphone output.
• 2. Power: Press and hold this button for 2 seconds to power on. Press and hold for 2 seconds to power off.
• 3. Automatic knob: Default: 100kHz position step knob. Short press activates custom function.
• 4. Large knob: Used for frequency stepping and setting parameters.
• 5. Mode switch button: Selects the operating mode.
• 6. Band switching button: Selects the operating band.

Other front panel buttons include FUNC, PTT, TUNE, MC, RIT, AF, Po, KEY, LOCK, V/M, MW, XFC, FIL, MODE.

2.2 Tail Interface Description

The rear panel provides various connection ports.

• 7. ANT: Antenna interface, Type: SL16-K.
• 8. KEY: CW key socket.
• 9. COMM: Communication port.
• 10. I/Q: Signal output.
• 11. ACC: Data connection port.
• 12. DC interface: External DC power interface.
• 13. Ground: Ground connection.

Interface Details

1. MIC Interface

Pinout:

• MICE
• MIC
• GND
• MDATA
• PTT
• MSVSW
• NC
• +8V

2. COMM Port

Pinout:

• RXD
• TXD
• GND

3. Headset

Pinout:

• Signal (Note: 信号)
• GND

4. ACC

Pinout:

• GND
• +8V
• ALC
• BAND
• DATA
• AF_OUT
• AF_IN
• PTT

5. CW Key Welding Diagram

Diagram shows a CW key connected to a common terminal. The diagram illustrates the wiring for a CW key, showing connections to a 'common' terminal and two other points labeled '滴' (di) and '嗒' (da), representing the keying contacts.

Handheld Microphone Button Description

• 1. LOCK button: Locking button.
• 2. PTT button: Transmitting control button.
• 3. up/down: Adjusts frequency (+ or -).
• 4. Transmission display LED: MIC operate pilot lamp.
• 5. Number key: For inputting numbers.
• 6. FIL: FIL selection.
• 7. MODE: Operation mode selection.
• 8. Function pilot lamp: Indicates function status (No specific function noted here).
• 9. Function Key: F1/F2 Custom settings.
• 10. MW: Memory operate.
• 11. V/M: Frequency/channel switch.
• 12. XFC: Temporarily no function.
• 13. TUNER button: Press and hold to activate the internal automatic antenna tuner.

2.3 LCD Indication

The LCD screen displays various operational information.

• 1. Current working mode: Displays the active operating mode.
• 2. Current VFO selection: Indicates the selected VFO (VFO A or VFO B).
• 3. S meter/Power meter: Shows signal strength and transmit power.
• 4. Frequency spectrum display: Visualizes the radio frequency spectrum.
• 5. Waterfall display: Shows signal activity over time.
• 6. AGC status display: Indicates the status of the Automatic Gain Control.
• 7. External DC input voltage: Displays the voltage from the external DC power source.
• 8. Volume indicator: Shows the current audio volume level.
• 9. Current working frequency: Displays the active operating frequency.
• 10. Other VFO frequency: Shows the frequency of the alternate VFO.
• 11. Transmit VSWR indicator: Displays the Voltage Standing Wave Ratio during transmission.